Bucky has been on this kind of mission a thousand times before. Undercover, trick them into believing you're on their side, get the information you need and get out. It was supposed to be easy, just one more mission. God, he had been wrong.
When Fury approached him, file in hand, talking about organised crime, murders, the mob... Bucky accepted to take the mission. It was a simple plan, they needed information to take down the organisation. The way to get it? Get the boss' kid to fall in love with him. It didn't need to be hard or messy. It didn't need to be this. Somewhere as the months flew by, between dates and reporting information back to Fury, the line had blurred and what was supposed to be only a mission became... Something more.
He found himself enjoying their time together, laughing at their bad jokes, buying them little things, and before he could realise it he was falling, hard, helplessly, and suddenly the mission didn't feel so simple anymore